2

敏捷内容类型上可用的属性Image Field：

>>> app.Plone.test.image.
app.Plone.test.image.__class__(         app.Plone.test.image.__provides__(      app.Plone.test.image._height            app.Plone.test.image._p_state
app.Plone.test.image.__delattr__(       app.Plone.test.image.__reduce__(        app.Plone.test.image._p_activate(       app.Plone.test.image._setData(
app.Plone.test.image.__dict__           app.Plone.test.image.__reduce_ex__(     app.Plone.test.image._p_changed         app.Plone.test.image._width
app.Plone.test.image.__doc__            app.Plone.test.image.__repr__(          app.Plone.test.image._p_deactivate(     app.Plone.test.image.contentType
app.Plone.test.image.__format__(        app.Plone.test.image.__setattr__(       app.Plone.test.image._p_delattr(        app.Plone.test.image.data
app.Plone.test.image.__getattribute__(  app.Plone.test.image.__setstate__(      app.Plone.test.image._p_estimated_size  app.Plone.test.image.filename
app.Plone.test.image.__getstate__(      app.Plone.test.image.__sizeof__(        app.Plone.test.image._p_getattr(        app.Plone.test.image.getFirstBytes(
app.Plone.test.image.__hash__(          app.Plone.test.image.__str__(           app.Plone.test.image._p_invalidate(     app.Plone.test.image.getImageSize(
app.Plone.test.image.__implemented__(   app.Plone.test.image.__subclasshook__(  app.Plone.test.image._p_jar             app.Plone.test.image.getSize(
app.Plone.test.image.__init__(          app.Plone.test.image.__weakref__        app.Plone.test.image._p_mtime           app.Plone.test.image.open(
app.Plone.test.image.__module__         app.Plone.test.image._blob              app.Plone.test.image._p_oid             app.Plone.test.image.openDetached(
app.Plone.test.image.__new__(           app.Plone.test.image._data              app.Plone.test.image._p_serial          app.Plone.test.image.size
app.Plone.test.image.__providedBy__(    app.Plone.test.image._getData(          app.Plone.test.image._p_setattr(

我希望存在一种方法getImage或getImageURL方法……如此之多，以至于我发现自己通过以下方法解决了它的缺失：

def get_image(self):
    return "data:%s;base64,%s" % (self.context.image.contentType,
        base64.encodestring(self.context.image.data))

和：

<img tal:attributes="src view/get_image" />

哪个有效，但在许多（希望是显而易见的）方面并不理想。现在，这种类型的默认视图通过小部件资源提供所需的功能：

view/++widget++form.widgets.image/@@download/the-image.png

但是我无权访问它（AFAICT），因为我已经自定义了这种类型的默认视图。应该有getImage方法吗？还是我错过了其他一些明显的方法。

4

2 回答 2

3

你有没有在 plone.app.imagescales-way 中尝试过

<img tal:replace="structure context/@@images/shortnameofmyfield/thumb" />
于 2013-06-28T13:14:11.173 回答
1

我解决了一个类似的问题：

selected_image.restrictedTraverse("@@images").scale('image', width=None, height=None).index_html()

这将返回原始大小的图像。

于 2014-06-26T08:28:33.563 回答